I dont know.I found this at www.lexusport.com
2006 IS250 (base model)
$ 27,585 - Manual - RWD
$ 28,955 - Automatic - E-Shift - RWD
$ 30,905 - Automatic - E-Shift - AWD
2006 IS300 (base model)
$ 32,925 - Automatic - E-shift - RWD
$ 34,875 - Automatic - E-shift - AWD
2006 IS350 (fully loaded)
$ 42,475 - Automatic - E-shift - RWD
notes: Transmission choices haven't been set in stone as the choices for each model change weekly. The IS350 will sell only in a fully loaded configuration. est. release date 2005.10.31
This is only for the US market.